Diffractional optics of millimetre waves

Theory of diffraction. Short focusing Fresnel zone plates. Elements of diffraction quasioptics. Synthesis of diffractional elements. Diffractional antennae at millimetre wavelengths. The influence of surface form on the structure of Fresnel zones. Applications of diffractional optics and quasioptics. Diffractional antennae. Optical constants of materials at submillimetrics and millimetric wavelengths.